UNIVERSITY OF OSLO
Department of informatics
The Effect of Temporal Distance on Predictions of Duration
Master thesis
30 credits
Thomas Portilla
22 May 2013
Acknowledgements
First and foremost I would like to thank Johanna and Maria, for showing patience when my thoughts have been traversing far off mental landscapes, only to return to the present for briefest of moments. I would especially like to thank my supervisor Alf Børre Kanten, for giving me the opportunity to write the thesis on such a short notice. His perspectives on theoretical implications, as well as his attentive eye for the smallest of details have been of invaluable importance for the progress of the thesis towards its attainment. I would also like to thank Espen Moen Eilertsen for insightful comments on statistical issues, and lastly I would like to thank the students who participated in the study.
Table of Contents
Abstract...5
Introduction...6
Construal-level theory of psychological distance...8
Level of construal...8
Psychological distance ... 9
Interrelation of distances... 9
Psychological distance and level of construal...10
Construal-level and perception of time... 11
Past research on time predictions...12
The planning fallacy...12
Cognitive and motivational processes...13
Construal-level affects future predictions... 14
Past research on affective forecasting... 16
Affective forecasting...16
Immune neglect... 16
Focalism... 17
Construal-level and focalism...18
Construal-level and emotional states...19
Present research... 20
Experiment 1: The effect of temporal distance on task duration estimates in an anchoring paradigm...21
Anchoring...21
Assimilation...21
Selective accessibility model...22
Method... 25
Participants... 25
Materials and procedure... 25
Results and discussion ...26
Experiment 2: Deviations and delays...31
Method... 32
Participants... 32
Materials and procedure... 32
Results and discussion...33
Experiment 3: Near and distant future affective forecasting...37
Method... 38
Participants... 38
Materials and procedure ... 39
Results and discussion...40
General discussion... 42
Stimuli and sensation... 44
Elasticity of time... 45
Time perception in affective forecasting...47
Accessibility experiences and temporal biases... 48
The time, task distinction... 49
Downstream consequences... 51
Conclusion... 52
References...53
Appendix A...60
Appendix B... 66
Appendix C...70
Table of Tables and Figures Table 1...27
Table 2...33
Table 3...34
Table 4...40
Table 5...40
Figure 1... 27
Figure 2... 28
Figure 3... 36
Abstract
Construal-level theory (Trope & Liberman, 2010) states that people use increasingly higher levels of abstraction to represent a mental object, as the psychological distance to the object
increases. Kanten (2011) investigated during a series of experiments the role of construal-level in prediction of time needed to perform a task. The results revealed an increase of task duration
estimates when moving up in construal-level. A time contraction mechanism has been proposed as a possible explanation for the observed increase of estimates. Time shrinks when people are moving up in abstraction, consequentially more time is needed to cover the same amount of work. The main objective of the present research was to replicate Kanten's findings of increasing task duration estimates as a function of moving up in abstraction. This was achieved by investigating whether the findings would prevail for estimates of tolerance for delays, for affective durations, and for task durations in an anchoring paradigm. During three experiments, participants induced with temporal distance were instructed to estimate task durations (experiment 1), tolerance for delays (experiment 2), and affective durations (experiment 3). The results showed a consistent increase of the durations estimates over temporal distance. When comparing two task durations in the distant future, they appear more similar as a consequence of time contraction (experiment 2). The discussions centers around the contraction of time as a function of psychological distance, and how changes in time perception influence peoples predictions of duration estimates.
The Effect of Temporal Distance on Predictions of Duration
Introduction
People make predictions about future realities in everyday life, still belonging to the
imagination, far away from being manifested in the present reality. The innate capacity to envision distant places in other times, to consider hypothetical scenarios, or taking the perspectives of others, represents intrinsic human qualities. For instance, being able to take the perspective of another person is essential to understand how he or she feels. Conversely, we normally try to work out how we are viewed by others by thinking about how we see ourselves, then making a prediction from that. Moreover, probabilities convey a sense of distance, as well. A lot of people are buying lottery tickets even though only the few can strike the jackpot. There is a remote probability of winning, but there are no serious consequences associated with losing either. On the other hand, when taking a flight, safety will be paramount, a high likelihood for success must be guaranteed. Furthermore, when planning for a trivial weekend trip in the near future, or a deciding where to move to and settle down in the distant future, are choices that represent both temporal as well as spatial distance from the experienced self in the here-and-now.
How do we transcend the present moment to include future as well as past events, other people's perspective or hypothetical situations? According to Construal-level theory (Trope &
Liberman, 2003) we do so by forming abstract mental construals of distal objects. Our ability to remember the past, to take the perspective of others, and to confabulate about future possibilities are distinct from the here-and-now. During everyday activities, people constantly transcend the
immediate by thinking about distal objects, places, and events. The different forms of distance have the common starting point in ongoing experience. Thus, remembering a past holiday or
contemplating about what a colleague might think of you, represents distal experiences and
imaginations, introspectively linked to the egocentric reference point of the observer. Time, space, social distance and hypothetically therefore represent different dimensions where mental objects are represented by construal-level (Trope & Liberman, 2010). As psychological distance increases, the construal will become increasingly more abstract, and vice versa. Since the proposed dimensions have the same subjective reference point within the observer, construals on one dimension should equally affect the other dimensions. By contemplating about the outer reaches of space the observer transcends into an abstract high level mindset broadening the perspective, whereas thinking about relatively recent episode, e.g., yesterdays dinner, contracts the mindset. The contraction and expansions of ones mental horizon transforms the ever-changing construal-level.
Seen from the egocentric reference point of the self, time is perceived as an elastic construct.
These conceptions are well known from a layperson's perspective too. The sense of time floating by as life passes on, is perceived differently with age (Wittmann & Lehnhoff, 2005), when having fun, as opposed to when tedious and boring tasks needs to be fulfilled (Kellaris & Kent, 1992), or
moments with lots of activity, in comparison to the inertia of time when doing nothing (Ahn, Liu, &
Soman, 2009). The nature of subjective time perception can therefore be seen as an underlying factor for a host of potential misjudgments when predicting durations.
Past research has revealed that estimations of task durations will increase as a function of psychological distance. In a series of studies this was investigated by either priming participants with high or low-level construals, before instructing them to estimate task durations (Kanten, 2011;
study 1-3). Kanten suggested the observed increase in duration estimates, when moving up in construal-level, was a result of the contraction of time. Kanten further contended that the object like quality of the task will shrink at a slower pace over temporal distance, than the malleable character of time, causing its perceived contraction. When the subjective time unit shrinks as a function of temporal distance, the amount of units needed to cover the task in the future, as compared to the present, will subjectively need to increase in order cover the same task. Furthermore, to directly test the actual shrinkage of time across distance conditions, participants were instructed to measure the length of one hour, by drawing its length (Kanten, 2011; study 4). As suspected, the results revealed that an hour was drawn to be shorter as a consequence of moving up in construal level. Since the effect of time contraction operates outside people's awareness, the shrinkage of time will increase the chances for obtaining errors, when predicting duration estimates for future endeavors. A minute in the present is subjectively treasured more than the same amount of time in a year. As a
consequence, a task will typically be predicted to span for a longer duration in the distant rather than proximal future.
The main agenda of the present research is to (1) replicate Kanten's (2011) studies on temporal distance and task duration estimates in an anchoring paradigm. Anchoring has since its introduction by Tversky and Kahneman (1974) proven to be an extremely robust psychological phenomena. By adding anchors to the original design, this study can also be considered as an examination of the strength and generalizability of the original findings. Furthermore, (2) the time contraction mechanism, contends that two task duration estimates will look more similar as a function of temporal distance. The second experiment will test out the validity of this claim. Lastly, (3) the third experiment investigates whether predictions of affect duration increase as a function of temporal distance as well. Affective forecasting is a major research tradition within social
psychology. There is a great tendency for people to overestimate the intensity and duration, of both positive and negative emotions, when predicting the influence they will exert in the future (Wilson
& Gilbert, 2003). However, the present research is to the author's knowledge the first to investigate the effect of temporal distance, in relation to emotional intensity and duration. Overall, the main objective for the current research is to investigate the relation between how subjective time contracts as a function of temporal distance and level of construal, and how this is reflected in people's duration estimates. In the following, we briefly review past research relating to construal- level theory, the planning fallacy, and affective forecasting. Chapters on affective forecasting and the planning fallacy will contain relevant material in relation to construal-level.
Construal-level theory of psychological distance
The association between distance and construal level has been shown to play an important role in different kinds of judgments, more specifically; primary versus secondary features of choice and evaluation (Trope & Liberman, 2000), comparisons (e.g., Wakslak & Trope, 2009), pros and cons (Liberman, Eyal, Trope, & Walther, 2004), values and moral principles (Eyal, Liberman, &
Trope, 2008), and predictions (e.g., Wilson & Gilbert, 2003). Past research pertaining to comparisons and predictions, will be of special interest to the present study, and in particular evidence associated with these areas will be given weight throughout the text.
Level of construal
High level construals are abstract, coherent and superordinate, whereas low level construals are concrete, contextualized and subordinate. As the observer expands the mental horizon details are omitted, making the construal more abstract and less contextualized (Liberman & Trope, 2008).
Since abstract superordinate representations can represent a myriad of concrete subordinate representations, they tend to leave out incidental details. Therefore they represent less complexity, and are more prototypical than concrete representations. Liberman et al. (2002) hypothesized that people would use fewer and broader categories to classify objects that belong to distant future situations. Participants imagined themselves in various situations (e.g., having a yard sale) in either the near future or the distant future and classified the objects related to each situation (e.g., clothes, books, CDs) into as many categories as they thought appropriate. When participants imagined a distant future event, compared to a near future event, they found that objects were categorized into fewer and broader categories.
In a subsequent study, Liberman et al. (2002) predicted that future good or bad days, would consist of prototypically positive or negative experiences, since prototypic construals are more likely to be applied to distant future experiences. Moreover, Liberman et al. instructed the
participants to imagine a good or a bad day in the near or distant future, and list events happening
that particular day. For distant future days, the results revealed less diverse experiences within each type of day, such that the good and the bad days were more prototypical, extreme, and distinct from each other. Taken together, the evidence suggests that temporal distance systematically changes the way objects and events are represented, such that a distant future is represented more schematic and coherently.
Psychological distance
As noted above, CLT states that people use increasingly higher levels of construal to represent an object as the psychological distance to the object increases. From a psychologically distant perspective it is more useful to construe an action in terms of a high level construal. High level construals have evolved to represent distal objects, since distance conserves the invariant properties. Liberman et al. (2002) found that a set of items were classified into fewer, broader and more abstract categories, when the items belonged to more future activities. On the other hand, low- level construals represent the object in exact detail in a particular time or place. Ledgerwood, Trope,
& Chaiken, 2010 and Ledgerwood, Trope, & Liberman, 2010 have provided evidence for the greater flexibility of proximal mental objects, whereas distal objects support consistency. Since individuals construe near objects more concretely, these objects tend to incorporate context dependent information unique for the actual situation. On the other hand, since distal objects are construed more abstractly, their evaluations will be more independent of the surrounding social context. In line with this reasoning, participants primed to adopt a concrete mindset subsequently evaluated an issue (policy) more favorably when the interaction partner supported it, whereas participants primed to adopt an abstract mindset, made evaluations that were unaffected by the social context. That is, when adopting a concrete mindset their evaluations were flexibly
incorporating the attitudes of the stranger, while being in an abstract mindset, led their evaluations to be more resistant towards other peoples attitudes. Instead the abstract mindset reflected the participants previously reported ideological values. Seen from this perspective, high and low-level construals will produce more or less stability in mental representations.
Interrelation of distances
If there is a common dimension of psychological distance underlying space, time, social distance, and hypotheticality, these dimensions should be mentally associated. That is, the outer reaches of space should bring to mind distant memories of the past, improbable situations, or different others. Whereas, thinking about your close relative living nearby, should bring to mind close places and likely encounters. Past research has shown that the different psychological
distances are interrelated to each other, thus a certain psychological distance on one dimension should affect the perceived distance on another dimension. Bar-Anan, Liberman, Trope, & Algom (2007) provided evidence for this hypothesis by testing automatic activation of words conveying temporal distance, spatial distance, social distance and hypotheticality. This was achieved by showing words on a computer screen either close to or further away from the participant. When the words meaning and its spatial location on the screen were congruent, reaction times were
significantly lower than when they were incongruent. For instance, geographically close words were classified faster when it was friend, than when in was enemy. For geographically distant words the opposite were true. The study provided support across all four distance dimensions, showing their interrelation across psychological distance are accessed automatically.
Furthermore, the interrelation of the psychological distance dimensions was investigated by exploring how temporal and spatial distance affected social distance (Stephan, Liberman, & Trope, 2010). Politeness has been shown to regulate social distance. People usually show more politeness towards strangers than friends, and polite language creates a sense of social distance between people. Thus, politeness was predicted to be related to temporal distance as well as spatial distance.
Stephan et al. provided evidence for more polite actions towards others when participants primed to adopt a high level mindset. Moreover, if others were addressed in a polite language the participants inferred that they were situated geographically more distant, than when addressed in colloquial terms. When testing for the effects of politeness on temporal distance, an identical pattern was revealed. Colloquial language decreased spatial distance, while polite language led participants to believe that the others were situated in a remote location, supporting the claim of the interrelations between the psychological distance dimensions.
Psychological distance and level of construal
Construal level theory has provided evidence for a reciprocal link between psychological distance and level of construal. Psychological distance will induce high level construals, likewise high level construals will represent distal objects. From a perceptual viewpoint, people have the capacity to move closer, and get a narrow detailed view of the object, or stepping back to get an overview. Liberman and Förster (2009) tested the assumption that abstract construals impacts people's perception of spacial distance. Across four different experiments, participants primed to adopt a high level mindset, judged temporal distances to be longer, spatial distances to be greater, social distance to be larger, and distal events were perceived to be less probable. Induction of a low level mindset had the opposite effect. Psychological distance across all four dimensions was in comparison judged to be shorter. These findings show interactions between perceptual stimuli and
internal conceptual representation.
There has also been collected evidence for the association between distance and level of construal on a pure conceptual level. Bar-Anan, Liberman, & Trope (2006) accomplished this by using an implicit association test to demonstrate associations between words related to construal level (low versus high), and words related to the four dimensions of distance (near versus distant).
Participants responded faster in congruent trials where distance and construal represented a pairing, (e.g., tomorrow (closeness) and potato (exemplar)), than in incongruent trials (e.g., next year and potato)). Automatic associations between distance and construal-level were achieved across all four distance dimensions of space, time, social distance and hypotheticality, without the need for
conscious thought, providing evidence for the reciprocal link between psychological distance and level of construal.
Construal-level and perception of time
A high-level construal conveys more distance than a low level construal, thereby imposing a broader perspective. An abstraction of objects, places and events will provide them with stable properties across a wide array of times, situations, and individuals (Trope & Liberman, 2010). A parrot living in the wild refers to a concrete exemplar of bird, constrained to certain habitats around the world. On the contrary, a bird, irrespective of species, can be found on every part of the globe. A high level construal is therefore associated with taking a distant perspective, focusing on the big picture. In accordance with these assumptions Liberman and Förster (2009) investigated the effect of psychological distance on the level of perceptual construal using a Navon paradigm (global letters composed of local letters) (Navon, 1977). Thinking of more distant events, either temporally, spatially, or socially, made participants respond faster to global letters and respond slower to local letters. Thinking of more proximal events had the opposite effect.
When adopting a broad perspective the details are less relevant, while a close up view would obscure the broad perspective. The relation between construal-level and level of detail will need to be on par for accurate time perception. Maglio and Trope (2011) found that larger unit of
measurement arises as a consequence of greater spatial distance from a given target to the observer.
When two points on a map were described distant rather than near, this invoked a larger unit of measurement for the participants. In relation to temporal distance, this signifies that the vast time horizon of a year's time associated with a high-level construal, will impose a larger preferred unit of measurement when perceiving time, whereas low-level construal will impose a smaller time unit in comparison. This has implications for people's time perception. When time is viewed within a narrow horizon – how long until lunch hour, minutes would represent a good fit. On the other hand,
viewed within a broad timeframe – a countdown to the next year's holiday trip would demand weeks or months as the sensible unit of measurement. To measure a years time in the order of minutes would not provide a satisfying understanding for the perceiver, just an annoyingly large number devoid of meaning. However, at a high level of abstraction, weeks would provide time intervals better suited to cope with the vastness of a year's time. To conclude, if the unit of measurement is too detached from the perceiver's current timeframe, it would be rendered
conceptually irrelevant. The act of zooming in or out as a consequence of construal-level, alters the preferred unit of measurement, such that it grows or shrinks as a function of temporal distance.
Since subjective time alters across psychological distance, this has implications for how people estimate task durations. Writing a summary of a chapter, or renovating a house will
objectively need the same amount of time in the present as in a year from now. Off course the length of one clock hour spans the same interval now as in the future, but time is more exposed to
subjective changes in perception. Kanten (2011) conducted a series of studies revealing that task duration estimates increased as a function of temporal distance. As a possible explanation for the discrepancy between the estimates in the near and distant future, a time contraction mechanism was proposed. Kanten theorized that from an observer's standpoint – even though both task and time will be subject to alteration over temporal distance, the perception of the object like quality of a task will be relatively static, whereas the perception of time is more malleable. The task will preserve its constitution to a greater extent, compared to the time horizon embracing the task. Kanten further contended that the contraction or expansion of time in relation to the task cannot be perceived in an absolute sense. Instead, it is a relative process; time shrinks at a quicker pace as function of distance and construal-level, compared to tasks. Moreover, direct evidence for the contraction of time were gathered, by asking people to draw the length of one hour, showing significant differences between construal-level manipulations (Kanten, 2011; study 4).
Past research on time predictions The planning fallacy
People's tendency to underestimate how much time they need to complete a future task is often referred to as the planning fallacy. Even for tasks executed numerous times in the past, a large margin of error exists, due to the unpredictability of future events. The underestimation of task completion times has been found when predicting a wide variety of tasks, such as furniture
assembly (Byram, 1997), academic projects (Sanna, Parks, Chang, & Carter, 2005), and large scale software projects (Moløkken-Østvold et al., 2004). The examples of costly overruns are abundant in the scientific literature. Peoples overly optimistic outlook about their future activities were captured
in a study conducted by Buehler, Griffin, & Peetz (2010). In this study, Canadian tax payers
submitted the tax returns a week later than previously predicted. They had no misconceptions about their past record of late deliveries, but expected to improve by delivering the tax form more quickly next time. The recurring theme of the planning fallacy is therefore people's acknowledgement of past mistakes, while at the same time exhibiting optimism for future tasks equal in nature.
Several factors contribute to this phenomenon. Buehler, Griffin, & Ross (1994) identified two important factors: A motivational one, were people engage in wishful thinking, failing to see the obstacles lying ahead of the solution. A cognitive one, whereby people not emphasize
sufficiently past experience of similar tasks, and instead focusing too much on simple step-by-step plans for successful task completion (Buehler, Griffin, & MacDonald, 1997).
Cognitive and motivational processes
Past research on the planning fallacy reveals that when people think about when they will accomplish a future task, they fail to incorporate their past experiences on similar tasks. For instance, when people are trying to figure out task completion times, they often engage in wishful thinking, failing to consider past experience is a contributing source for mispredictions. For instance, Buehler et al. (1997) examined the impact of motivation on predicted and actual
completion times for completing income tax forms. They reasoned that those individuals expecting refund presumably have relatively strong motive to submit their forms early and receive an early payment. Buehler et al. expected that this motive would affect people's predicted completion times, leading to a larger optimistic bias for those expecting a refund, than those not expecting a refund.
Results revealed that the hopes of receiving an early tax refund, led individuals to predict that they would file their tax forms hastily. As expected, hopes of a refund led to greater optimistic bias. The difference between predicted completion times was greater for participants expecting a refund, than for those not expecting a refund. Thus, instead of remembering how long similar tasks took to complete, people have a tendency to think about when they intend and prefer to complete a task (Buehler et al., 1994; Buehler et al., 1997). A way of reducing the planning fallacy is therefore to explicitly ask people about completion times on similar tasks, and how past tasks bear similarities with the future tasks (Buehler et al., 2010).
However, remembering past experience will not necessarily suffice to improve estimation accuracy, since both remembered and predicted task duration are known causes for mispredictions (see Roy, Christenfeld, & McKenzie, 2005 for review). Past research has mainly cited the cause for the memory bias being due to memory not being used correctly, resulting in peoples overly
optimistic outlook. The general trend of underestimating past task durations, will create biased
memories of the durations, that in turn may influence future planning. Roy et al. (2005) listed some important findings for peoples underestimation of task completion pointing towards a memory bias as the important cause. In particular, there is a similar tendency to underestimate both past as well as future durations. Moreover, the tendency for underestimation is greater for familiar tasks, than for novel tasks. Finally, factors that influence memory of duration, affect predictions of duration in the same way. Therefore, when people are basing their predictions of future task durations, they use their memories of how long past durations have been, but their memories are systematic
underestimations of past duration. According to Roy et al., people seems to underestimate future task durations because they underestimate past task durations.
Another cause for mispredictions are peoples tendency to put too much emphasis on salient aspects of the task, thereby forgetting to consider other relevant aspects influencing on how long the task will take to complete. By forgetting to unpack a multifaceted main task into its constituents, people fail to see the overall complexity of the task. In turn, this will lead to optimistic task
durations. Kruger and Evans (2004) asked participants for how long it would take them to complete several tasks, such as holiday shopping, getting ready for a date, formatting dictionary definitions etc. Participants prompted to unpack the task into its subcomponents provided longer, and less biased estimates of how long the task would take, than did participants who did not. By thinking through relevant, but smaller aspects of the task, instead of focusing solely on the dominant parts, served as debiasing and provided more accurate estimates. Moreover, when Kruger and Evans varied the complexity of the task, they found that unpacking was greater for participants
undertaking a complex task, than for participants undertaking a simpler and less multifaceted task.
Forsyth and Burt (2008) provided further evidence for the discrepancy between treating the task as a whole, or by its parts. This was achieved by comparing estimated task duration for a single task, with the aggregated durations of the subtasks constituting the single task. Estimated time for a single task was significantly smaller than the aggregated time of the individual subtasks, bearing proof of the effectiveness of unpacking as a debiasing technique.
Construal-level affects future predictions
High level construals might contribute to several biases known to produce the planning fallacy. The very act of future thinking necessary for predicting future task durations, may influence on the accuracy of the prediction. Trope and Liberman (2000) has shown that people represent future events more abstractly and prototypical than they do represent the proximal future, even if the amount of information pertaining to the task is held constant. Trope and Liberman therefore contends that this association is overgeneralized, making people inclined to use high-level
construals when thinking of distal objects, and low-level construals when thinking of proximal objects, regardless of available information.
When people plan for future events, they tend to overlook constraints and possible obstacles, reflecting a “less concerned” high level mindset. Liberman and Trope (1998) showed that the value associated with a high level construal is enhanced over time while the opposite is true for a low level construal. In goal directed activities desirability of the goals state maps onto high-level construals, whereas feasibility of reaching this end state represents low-level construals. Liberman and Trope showed that decisions regarding future activities were to a higher degree influenced by the desirability of the end state, while proximal activities were concerned the about feasibility.
Participants prioritized interesting assignments in the distant future condition, whereas in the proximal future condition they placed more weight on the difficulty of the task. Therefore, distant future plans were related to the desirability of activities, rather than to time constrains and obstacles.
Conceptualizing a task in a high level construal will make people more inclined to infer that the results are a consequence of their own abilities, as opposed to contextual factors. Since high- level construals represent represents the gist and central meaning of the task, hypothetical tasks should motivate for unrealistic optimism, as compared to concrete, real tasks. When it comes to predictions of performance, Armor and Sackett (2006) argued that when the task was presented hypothetically, the results revealed overestimation of how well participants would perform, displaying less correlation between real and predicted performance. In short, they were overly optimistic compared to the accuracy obtained when predicting a real task (presented as actually doing the task later on). Armor and Sackett found that people predicted to solve more questions than they did on a GRE test when it was presented as hypothetical rather than real. The participants saw the test as more meaningful and remembered fewer particular details about it. When listing factors that possibly could influence their performance, they tended to mention fewer and more stable ones. Participants also judged the test to be more indicative of their own abilities. In sum, the evidence suggests peoples conceptualization of the task to be based on a more prototypical high- level representations.
The very act of planning for a distant future creates a simplified, abstract mental object, more concerned about the essential qualities of the task than of its underlying constituents. To the contrary, as one gets closer to an object, the perception of it becomes more fine grained, and therefore more exposed to contextual factors. Peetz, Buehler, & Wilson (2010) investigated how temporal proximity affected optimism on predictions of task completion. Temporal proximity increased attention towards either; step-by-step plans, or potential obstacles in the environment.
Interestingly, the situation specific differences produced an opposite effect on predictions. The tasks
(e.g., Christmas shopping, school assignment, writing task) were either presented as hypothetical or real. In the near future, real tasks elicited a focus on obstacles. This is according to Peetz et al. due to peoples enhanced awareness of potential other real life obstacles that might interfere, producing less optimistic predictions. To the contrary, a hypothetical task generated a more optimistic
prediction in the near future condition, because they led people to focus on their plans. Thus, an increased focus on plans led to earlier predictions for close than distant projects, whereas an increased focus on obstacles led to later predictions, for close than for distant projects. This shows that temporal proximity can lead people to become vulnerable to contextual factors in the
environment. A high-level mindset did not respond to the details in the situation to the same extent as a low-level mindset, but were instead more attentive towards the overall objective.
Past research on affective forecasting Affective forecasting
There is a great tendency for people to overestimate the impact and duration, of both positive and negative emotions, when predicting the influence they will exert in the future, compared to the present (Wilson & Gilbert, 2003). Most people are wrong about how they feel about the future, by thinking that their current feelings will prevail and matter more, than what they end up doing. The impact bias refers to the discrepancy between the predicted emotional reaction to an event, and the actual emotional impact of that event. The impact bias covers both the intensity and the duration of the emotional reaction, whereas durability bias only addresses duration. Humans have a remarkable ability to adjust and adapt to almost any emotional situation, but fail to
acknowledge this fact.
A wealth of explanations have been suggested for people's mispredictions of future emotional states, whereof immune neglect – not taking your emotional coping strategies into consideration when experiencing negative upheaval (Hoerger, 2012) and focalism – overestimating the importance of dominant aspects of a situation, forgetting to take other important nuances into consideration (Wilson et al., 2000), are cited among the most frequent. Time contraction could also provide an alternative explanation for the observed inaccuracies in affective forecasting, and will serve as an interesting new perspective to an already immense area within social cognition.
Immune neglect
A well-known cause for the durability bias is the failure to take into account how much one's emotional immune system will alleviate the negative impact of distressing events. When a painful event occurs, reconstruing the event in various ways, and such making it appear less painful is a
viable strategy. Since the psychological immune system operates outside of consciousness, the improvement of negative reactions will not be taken into consideration, when people predict their emotional responses. As a consequence, peoples subconscious coping strategies for handling negative reactions, and thereby lessening their emotional impact, will fail to be taken into account (Hoerger, 2012).
People continually make inaccurate forecasts because they fail to take into consideration their ability to adopt, cope and overcome negative emotions. People have a remarkable capacity for rationalization. Before you have been struck by misfortune, it is difficult to imagine how you manage to trivialize the importance of it. Hoerger, Quirk, Lucas, & Carr (2009) found that
American footballers overestimated their reactions to wins and losses. Footballers reporting greater use of emotional processing coping strategies recovered more effectively from losses, but failed to see this when making predictions of future emotional states. Rationalization helps people find ways to see the event as both accurate and pleasant. Since almost anything can be seen in multiple ways, from a good view to a bad view, coping processes helps people find and settle on the most positive approach to the misfortunate event.
Moreover, Hoerger (2012) also investigated peoples tendency to disregard coping strategies when they were predicting distressful life events. The participants were instructed to supply
predicted, and actual emotional reactions to Valentine’s Day, considered to be a stressful life event.
On the actual day, the participants responded to an open-ended question asking them to describe the events that had occurred. The results revealed a discrepancy between predicted and actual emotional ratings. The participants had overpredicted how positive they would feel, indicating the presence of immune neglect. Moreover, Hoerger also looked at the correlation between coping strategies and participants predicted, and actual emotional reactions. In line with the immune neglect hypothesis, coping was more highly correlated with actual emotional reactions than predicted emotional reactions. This is points towards the fact that most people do not realize the impact that coping strategies can have on their feelings, following an emotionally evocative event.
Since the psychological immune system works to alleviate negative but not positive affect, immune neglect only explains mispredictions about the duration of negative events. Since there is a tendency to overestimate positive emotional reactions as well, other mechanisms must also play a role in causing the impact bias.
Focalism
Another cause for the impact bias is people's tendency to focus too much on the event at hand, thereby failing to see the consequences of other probable events. People tend to see the focal
event in a vacuum, failing to see that their lives are filled with a lot of different activities (Kahneman, Krueger, Schkade, Schwarz, & Stone, 2006).
People's beliefs about how they will feel in response to future emotional events, often neglect similar emotional episodes from the past. Even when people have repeated experiences with resembling emotions, they reveal limited learning from past emotional reactions. People overweight the focal emotions, and underweight the non-focal, but nevertheless relevant emotions. Wilson, et al. (2000) asked college football fans how long a football game would influence their happiness.
Before the game, some of the participants were in addition given a prospective diary questionnaire, on which they rated how much time they would spend on a variety of daily activities, in the days after the football game. As predicted, people in the diary condition reported the to be less influenced by the outcome of the game, as well as thinking less about it. By asking people to consider the occurrence of non-focal events, the durability bias was reduced. This was achieved by guiding people's attention towards the realistic details of the future event, and away from the prototypes.
One could speculate that the focus on certain aspects, while not taking other relevant events into consideration, can be further enhanced by an abstract mindset. Thus, construal-level might constitute a significant source for mispredictions in affective forecasting.
Construal-level and focalism
An abstract high level mindset conceptualizes events more abstractly and general, than a low level mindset. As a consequence, the lack of concrete details leads forecasters to rely on more prototypical representations. People have a tendency of underweighting the situational aspects of close events, and overweight the prototypical aspects of distal events. By not taking the situational factors sufficiently into consideration, this can easily lead to prediction biases (Kahneman et al., 2006; Wesp, Sandry, Prisco, & Sarte, 2009; Wilson et al., 2003). These biases could in addition be intensified by temporal distance, since high level construals direct focus towards the essential and schematic features of the event, and away from the contextual details.
When forecasters imagine how their lives will be in the upcoming days, they will think of current activities they are preoccupied with. However, when thinking about how their lives will be in a year from now, activities easily withdraws to the background, becoming less significant. As a result, their lives seems to takes place in an uninterrupted vacuum. In support for this claim, Liberman, Sagristano, & Trope (2002) asked people to imagine what a day in the near future would be like, they tended to describe both positive and negative events. On the contrary, when describing what a day into the distant future would be like, they were represented as more uniform and
schematic, in either positive or negative terms. Furthermore, they also revealed that preferences for
events and activities that were expected in the distant future, were organized around simpler structures than preferences for the same events in the near future. In sum, this can turn out to be problematic, since the simpler and coherent representation could lack important information, crucial for the affective forecaster to rely on when making accurate future predictions.
Concrete construals will not be subject to the same problems as mentioned above, on the contrary, they could counteract focalism. A low-level mindset will be preoccupied with variety and incidental specific details pertaining to the situation. Wesp et al. (2009) examined the influence of thinking either concretely or abstractly on ratings of anticipated enjoyment of a positive future activity. In the first study participants were primed by a low level construal, whereas in the second they were given details of the events. Consistent with the hypothesis, participants primed to adopt a low-level construal rated anticipated enjoyment to be lower on the upcoming activity, since they more readily examined the details, and were less concerned about the overall gist of the positive event. In the second study, evidence showed that also explicit consideration for details influenced ratings similarly to the construal level priming used in the first study. These findings emphasize low-level construals, and details as a debiasing techniques against future optimism.
Construal-level and emotional states
Spatial distance is inextricably linked to affective states. Embedded deep within our human biology distance equals safety. Campbell (1960) suggested that visions itself was an adaptation, enabling us with safer exploration of the environment at a safe distance, by removing the need for close contact with potential dangers. For the infants survival, it is also crucial to keep close to the caregiver for food and protection. It is therefore a common assumption among people that the psychological distance to the emotional object or situation will influence its impact. A temporal distant perspective will diminish the strength of the emotion, making the impact less potent in comparison to the proximal future.
Moreover, when people distance themselves from an event, they are more inclined to reflect on the episode rather than ruminating, enhancing the capacity to recover. Recent research by Ayduk and Kross (2010) supports this notion. Participants were instructed to reflect upon a previous episode they felt rejected. When the individuals contemplated upon the episode from the perspective of someone else, experiencing a sense of distance, they recovered more effectively.
Distance from the episode lead participants to reconstruct instead of reliving the experience, and made them less inclined to experience negative emotions or intrusive memories while
contemplating. Therefore, if individuals adopts a high level mindset through the perspective of a mediator, reflection predominates and coping improves. On the other hand, if individuals feel
immersed in the event as they remember it, rumination predominates and coping is inhibited.
Abstract construals has also been shown to inhibit anger. Ray, Wilhelm, & Gross (2008) contrasted rumination and reappraisal by having participants to either ruminate or reappraise recent autobiographical events that elicited anger. The participant identified an unresolved event from the last two weeks in which he/she had become very angry with another person. The participant then rated how unresolved the event was, and the amount of anger felt. Subsequently the participants were instructed to write about the anger provoking conflict. The results revealed that despite spending equal amounts of time thinking about the events, participants who ruminated about it felt angrier when they recalled the event. Furthermore, they had a high probability of continuing to think about the event, and feel angry, even when they were told they could stop. This is presumably because writing the story from a first person perspective (rumination), made participants relive the emotional episode, whereas writing the story from a third person perspective (reappraisal), made the participants see through the eyes of an observer. When individuals considered an event from the perspective of a mediator, they adopted a high-level mindset, and were less likely to experience anger. The evidence suggests that distance has a soothing effect on how people perceive their negative emotions.
Present research
The main agenda of the present study is to investigate how temporal distance affects predictions of duration. To be able to achieve this goal, construal level theory was utilized as a unifying framework for investigating people's predictions of durations, in relation to such diverse predictions as performance time and affective reactions. Evidence were collected during three experiments spanning across two time condition manipulations; predicting duration estimates either tomorrow, or in the distant future a year from now.
To what extent temporal distance influence participants predictions of time estimates, was tested. The first experiment investigates the effect of the temporal distance on task duration estimates in an anchoring paradigm. This was achieved by asking participants to estimate task durations that was either to be performed in the proximal future or the distant future. The main objective of the second experiment was to test out a logical consequence of time contraction.
Specifically, two task duration estimates should be perceived as more similar in the distant future, than in the present. In addition, we sought to gain evidence to what extent people tolerated delays in the near compared to the distant future, by investigating if estimates of tolerance for delays would increase as a function of time. The third experiment investigated how construal level would impact the duration of emotionally negative events. By manipulating temporal distance, the reported
intensity of emotions as well as their duration, was measured in both proximal and distant future.
Experiment 1: The effect of temporal distance on task duration estimates in an anchoring paradigm
The first experiment is a replication of Kanten's (2011) design within an anchoring paradigm, thus a short description of anchoring research will first be presented before the actual experiment. Furthermore, Mussweiler (2003) theory of selective accessibility, will have
implications in relation to anchoring – for both predictions and interpretations of the results, and will therefore be mentioned briefly.
Anchoring
People's tendency to rely heavily on the first piece of information offered when making decisions is referred to as anchoring. Once the initial anchor attribute is established, it will influence the subsequent judgements and guide the final answer in the direction of the anchor. Tversky and Kahneman (1974) investigated the assimilation of estimates towards a previously given standard.
This was achieved by spinning a wheel of fortune in the presence of the participants, and letting the wheel stop at either ten or sixty five. Subsequently, the participants were to decide if the percentage of African Nations in the United Nations, were lower or higher than the anchor value. The
participants who had watched the wheel stop at ten, estimated in average lower values (25%), than participants who had watched the wheel stop at sixty five (45%). The comparison with the standard had raised the estimates in the low-anchor condition, and lowered them in the high-anchor
condition.
The anchoring effect has proved to be a ubiquitous and robust psychological phenomena, difficult to account for when making judgements, even when judges intentionally tries to avoid being influenced by the anchor attributes (Wilson, Houston, Etling, & Brekke, 1996) or have expertise in the domain in question (Wright, 1989). In particular, it has been observed in a broad array of different judgmental domains, such as general knowledge questions (e.g., Tversky &
Kahneman, 1974), estimates of self efficacy (Switzer & Sniezek, 1991), evaluations of lotteries and gambles (e.g., Chapman & Johnson, 1994), and probability assessment (e.g., Tversky & Kahneman, 1974), and estimating duration estimates (Thomas, Handley, & Newstead, 2007; Thomas &
Handley, 2008).
Assimilation
Three different mechanisms have been described that may contribute to assimilation
anchoring; insufficient adjustment from a starting point (Tversky & Kahneman, 1974), conversational inferences, and numeric priming (Strack & Mussweiler, 1997).
In numeric priming directing attention to the anchor value increases its accessibility, so that it comes to mind easily when the final estimate is produced. As a result, it will lead to assimilation, including the value in the final judgement. This variant of priming focuses exclusively on the numeric component of the anchor value, while the semantic context in which the value is presented is ignored. However, this implies that the anchor value should remain uninfluenced by contextual changes. Wilson et al. (1996) tested this assumption by changing judgmental dimension, such that the comparison was to another entity, other than the one previously used. In the relevant condition, people were asked to judge whether their number was less than, equal to, or greater than the number of countries in the United Nations. In the irrelevant condition, people were asked to judge whether their number was less than, equal to, or greater than an unrelated question; how many physicians and surgeons there were in the local phone book. The estimates for the number of African nations in the UN were influenced more strongly by an anchor compared to the same entity (the number of African nations in the UN), than to another entity (the number of local physicians in the phone book). A change of basis for comparison decreased the accessibility. Numeric anchoring fails to explain these results. To remedy for this deficiency Strack and Mussweiler proposed the selective accessibility model.
Selective accessibility model
Mussweiler and Strack (1999) claims anchoring is a form of semantic priming. As previously mentioned, numeric information is activated by the anchor to be included in a comparative anchoring task, it will subsequently be more accessible. A link between the anchor value to the target object has to be established, enabling the generation of semantic knowledge about the target object. When evaluating a new hypothesis, the individual looks for attributes similar to the anchor, producing the anchoring effect. For instance, Wilson et al. (1996) instructed participants take part in a comparative anchor task, indicating whether the target object were larger or smaller than the anchor value (e.g., the river Elbe is longer than 890 km, or shorter than 590 km).
Subsequently they were asked to indicate the length of the river Elbe. The result revealed that the absolute estimates were higher in the high anchor condition, than in the low anchor condition.
According to Mussweiler and Strack, in a standard comparative task people are first testing for the possibility that the target is equal to the anchor value. Judges selectively generate semantic
knowledge that is consistent with the notion that the target’s value is equal to the anchor value.
Mussweiler and Strack further contended to solve the subsequent absolute task, participants